Miniature pneumatic plug with by-pass conduit and retaining chain with ring



FIG. 1 is a perspective view of a miniature pneumatic plug with by-pass conduit and retaining chain with ring showing my new design;

FIG. 2 is a top plan view of the plug body;

FIG. 3 is an end view thereof;

FIG. 4 is a side view thereof, the opposite side being a mirror image thereof;

FIG. 5 is an end view thereof, opposite to that shown in FIG. 3;

FIG. 6 is a bottom view thereof;

FIG. 7 is an end view of that shown in FIG. 1;

FIG. 8 is a side view thereof;

FIG. 9 is an end view opposite to that shown in FIG. 7; and,

FIG. 10 is an inflated view of a miniature pneumatic plug with by-pass conduit and retaining chain with ring positioned in a pipe.

The broken lines shown are for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a miniature pneumatic plug with by-pass conduit and retaining chain with ring, as shown and described. 